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Spin resonance clock transition of the endohedral fullerene N15@C60

Spin resonance clock transition of the endohedral fullerene N15@C60

Harding, R. T., Zhou, S., Zhou, J., Lindvall, T., Myers, W. K., Ardavan, A., Briggs, G. A. D., Porfyrakis, K. ORCID: 0000-0003-1364-0261 and Laird, E. A. (2017) Spin resonance clock transition of the endohedral fullerene N15@C60. Physical Review Letters, 119 (14):140801. ISSN 0031-9007 (Print), 1079-7114 (Online) (doi:

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The endohedral fullerene 15N@C60 has narrow electron paramagnetic resonance lines which have been proposed as the basis for a condensed-matter portable atomic clock. We measure the low-frequency spectrum of this molecule, identifying and characterizing a clock transition at which the frequency becomes insensitive to magnetic field. We infer a linewidth at the clock field of 100 kHz. Using experimental data, we are able to place a bound on the clock’s projected frequency stability. We discuss ways to improve the frequency stability to be competitive with existing miniature clocks.

Item Type: Article
Uncontrolled Keywords: atomic, optical and lattice clocks, fullerenes, electron paramagnetic resonance.
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Faculty / School / Research Centre / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified: 19 Sep 2020 00:20

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